Safe and vault door and frame and method of making same



y 1934- A. H. LAMBDEN 57,217

SAFE AND VAULT DOOR AND FRAME AND METHOD OF MAKING SAME Filed June 13,1932 III Patented May 1, 1934 e I UNITED STATES PATENT OFFICE SAFE ANDVAULT DOOR, AND FRAME AND METHOD OF MAKING SAME Arthur H. Lambden, Gait,Ontario, Canada, as-

signor to The Goldie McCulloch Company Limited, Galt, Ontario, Canada.

Application June 13, 1932, Serial No. 616,887 In Canada October 15, 19316 Claims. (Cl. 29-448) It has been usual to construct steel vault andstructed comprising four members 3, also formsafe doors by either of twomethods. The older of ing sides and ends, which have been previouslythese methods was to formalaminated door by secut to the desired length,edged and shaped to curing together a series of plates by bolts orpresent the required bevel. The bolt holes are screws. The method mostcommonly in use in drilled in the parts before assembly and the partsmaking doors at the present time is to form a reare also drilled andcountersunk for screw fascessed cast steel framework, the recess inwhich tenings. The parts may also be suitably ground is filled up withsteel plate or other filler. The and polished. The ends of the boltcarrying secdoor frames are also usually formed of cast steel. tionparts are then prepared for welding, and the 10 The presentconstruction, while satisfactory in ends are then welded together toform a rectanguuse, is very expensive to make as so many diflerlar boltframe hoop, the lines of weld being inent sizes are required, and eachdifferent size indicated by the dotted lines 16. volves first making thenecessary patterns to en- The necessary holes are then drilled in theable the castings to be made. door hoop to correspond with thecountersunk 15 My object therefore is to devise a construction, holes inthe bolt frame for the fastening screws. which, while possessing thestrength of the cast The bolt frame hoop is then fitted within the doorsteel construction, may be made without requiring hoop and securedthereto by screws 5 and will the provision of the expensive patternsheretofore also usually be welded thereto. A lock plate 6 required, thusmaterially reducing the cost of the which may be of one or more plies,is then fitted 2 0 doors and frames. in the door assembly in front ofthe bolt holes I attain my object by building up the door frame andwelded in place, the line of weld being indiof steel bars previously cutto the proper size and cated by the dotted line 17. The recess in frontshape and Welding the parts together, and then of the plate 6 is thenfilled in with a suitable filling the recess thus formed with a suitablefilling '7, preferably such as to withstand high 25 torch and drillresistant material. temperatures and drilling, and finally a heavy Theconstruction is hereinafter more particuplate 8 is fitted in the mouthof the recess and larly described and illustrated in the accompanyweldedto the door hoop. A covering plate 11 ing drawing in which of suitablypolished or finished steel is then se- Fig. 1 is a cross section througha vault door cured in front of the frame and plate, preferably 30 andframe constructed in accordance with my by welding.

invention, the door being in open position; 12 indicates the lockingbolts, which are sup- Fig.2 an elevation of the door and frame, partlyported in any convenient manner and 2 the slides broken away, the dooralso being in open posifor operating the same, but it will be understoodtion; that the arrangement and operation of the bolts 35 Fig. 3 a crosssection through the door and and operatin a d locking m ans th reforemay frame with the door closed, and on a larger scale; be varied as maybe required to suit individual and cases and form no part of the presentinvention Fig. 4 a vertical section through the door and and thereforethey need not be further described. frame with the door closed. The doorframe or jamb is constructed in a d0 In the drawing like numerals ofreference insomewhat similar manner. First four separate dicatecoresponding parts in the diflerent figures. steel bars 4 to form thesides and ends are cut The door is formed of two sections secured totothe desired length, edged and shaped to pregether, the main protectivesection A and the Sent e required bevel They are then p bolt carryingsection B. ably ground and polished. After the ends of 45 The mainsection is formed as a framework these members are prepared for welding,the comprising four members 1, forming sides and Welding is effected toform a rectangular jamb ends, which have been previously cut to thedehoop. sired length and edged and shaped to present the An angle hoop ithen formed mp i in four required bevel, and are also preferably groundseparate pieces three of them 10 being of angle 50 and polished. Theends of the parts are then steel and one 10 of flat stock which aresuitably 5 prepared for welding and the ends then welded prepared andwelded together to form arectangutogether to form a rectangular doorhoop, the lar angle hoop. The jamb hoop is then inserted lines of weldbeing indicated by the dotted lines in the angle hoop and joined theretoby a con- 15. tinuous weld to form a solid unit, the line of 55 The boltcarrying section B is similarly conweld being indicated by the dottedline 19. The

angular space between the angle hoop and jamb hoop is filled with asuitable filling 13 having high torch and drill resisting qualities, forexample, concrete reinforced with chrome rods. Behind this combinedconstruction is secured the stop hoop 14, which forms a stop againstwhich the inner edge of the ring A may abut when the door is in closedposition. This hoop 14 may also be formed of separate parts weldedtogether at the ends.

It will be seen that according to this method of construction it iscomparatively simple to construct a door or frame of any size orproportion without the use of expensive patterns as required in amoulding process, and further that an eX- tremely strong construction isobtained.

What I claim as my invention is:

1. In a vault or safe door, a rectangular metal frame comprising sidemembers and end members welded together at the corners of the frame; anda metal bolt frame comprising side members and end members weldedtogether at the corners of the frame, said bolt frame being fittedwithin the first mentioned frame with their adjacent surfaces partiallyoverlapping and secured to one another.

2. In a vault or safe door, a rectangular metal frame comprising sidemembers and end members welded together at the corners of the frame; ametal bolt frame comprising side members and end members welded togetherat the corners of the frame, said bolt frame being fitted within thefirst mentioned frame with their adjacent surfaces partially overlappingand secured to one another; a lock plate spaced from the front of saidfirst mentioned frame to provide a recess in front thereof; a protectivefilling within the recess; and a cover plate welded to the forward edgeof said first mentioned frame.

3. In a Vault or safe door, the combination of a metal rectangularframe; a separately formed metal bolt frame fitted within therectangular frame with their adjacent surfaces partially overlapping andsecured to one another; and a protective filling in said rectangularframe.

4. In a vault or safe door, a metal door frame formed of bar materialhaving its ends welded together; and a separately formed bolt frame alsoof bar material with ends welded together, the edges of said lastmentioned frame partially overlapping the inside of said first mentionedframe and secured thereto.

5. In a vault or safe door, a metal door frame having inclined wallsformed of bar material having its ends welded together; and a separatelyformed bolt frame also formed of inclined walls and formed of barmaterial with ends welded together, said last mentioned frame beingfitted within the first mentioned frame with their adjacent surfacespartially overlapping, said overlapping portions being secured to oneanother.

6. A process for making rectangular vault or safe doors or frames whichcomprises forming the sides and ends of a hollow door frame fromseparate pieces of bar metal, and welding together the ends of the bars,similarly forming a hollow bolt frame from bar metal and weldingtogether the ends of the bars, fitting the bolt frame within the doorframe with the frames in slightly overlapping relation, and securingtogether said overlapping portions.

ARTHUR H. LAMBDEN.

